进阶-第86__熟练掌握ES Java API_基于search template实现按品牌分页查询模板

 

搜索模板的功能，java api怎么去调用一个搜索模板

根据指定的品牌进行模板搜索

创建模板

模板名称

page_query_by_brand.mustache

模板内容

{   "from": {{from}},   "size": {{size}},   "query": {     "match": {       "brand.keyword": "{{brand}}"     }   } }

 

搜索

 

package com.es.core.senior;   import java.net.InetAddress; import java.util.HashMap; import java.util.Map;   import org.elasticsearch.action.search.SearchRequest; import org.elasticsearch.action.search.SearchResponse; import org.elasticsearch.client.transport.TransportClient; import org.elasticsearch.common.settings.Settings; import org.elasticsearch.common.transport.InetSocketTransportAddress; import org.elasticsearch.script.ScriptType; import org.elasticsearch.script.mustache.SearchTemplateRequestBuilder; import org.elasticsearch.search.SearchHit; import org.elasticsearch.transport.client.PreBuiltTransportClient;   public class SearchTemplatePageQuery {                 @SuppressWarnings({ "resource", "unchecked" })         public static void main(String[] args) throws Exception {                  Settings settings = Settings.builder()                                   .put("cluster.name", "elasticsearch")                                   .build();                                   TransportClient client = new PreBuiltTransportClient(settings)                                   .addTransportAddress(new InetSocketTransportAddress(InetAddress.getByName("localhost"), 9300));                    Map<String, Object> scripParams=new HashMap<String, Object>();                  scripParams.put("from", 0);                  scripParams.put("size", 1);                  scripParams.put("brand", "宝马");                    SearchResponse searchResponse = new SearchTemplateRequestBuilder(client)                                   .setScript("page_query_by_brand")                                   .setScriptType(ScriptType.FILE)                                   .setScriptParams(scripParams)                                   .setRequest(new SearchRequest("car_shop").types("sales"))                                   .get()                                   .getResponse();                    for (SearchHit searchHit:                  searchResponse.getHits().getHits()) {                          System.out.println(searchHit.getSourceAsString());                  }                      client.close();         }         }

 

搜索结果

{     "brand": "宝马",     "name": "宝马320",     "price": 320000,     "produce_date": "2017-01-01",     "sale_price": 280000,     "sale_date": "2017-01-25" }